The 21-year-old victim received a call from a female friend Saturday night around 7 p.m. who asked him for a ride home, the Enterprise reported.

When the victim went to pick up his friend at the corner of South Street and Cottage Street, she was with two men whom the victim did not know. The two men also asked for a ride.

The victim drove the two men to 180 Main Street where he was then jumped and hit in the back of the head with the sock, Bridgewater Police Lt. Thomas Schlatz said. Inside the sock were full beer cans and rocks, police said.

The two men stole a knife out of the victim's car and caused a two to three inch cut on the top of the victim's head, Schlatz said.

Sean Hayes, 20, of 20 Marjan Drive, East Bridgewater and Jordan Smith, 20, of 17 Herford Lane, East Bridgewater were arrested and charged with armed robbery, assault and battery with a dangerous weapon and assault and battery.

Hayes and Smith were found by police a short time after the robbery at the Cumberland Farms at 33 Main Street and arrested, Schlatz said.

Lawyers for Boston Marathon bomber Dzkokhar Tsarnaev rested their case in his federal death penalty trial Tuesday after presenting a brief case aimed at showing his late older brother was the mastermind of the 2013 terror attack.